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Impeccable class

Ocean surveillance ship

Impeccable class

The Impeccable is the newest US Navy's ocean surveillance vessel

 
 
Entered service 2001
Crew 45 men
Sea endurance 90 days
Dimensions and displacement
Length 85.8 m
Beam 29.2 m
Draught 8 m
Displacement, standard 2 810 tons
Displacement, full load 5 370 tons
Propulsion and speed
Speed 13 knots
Range ?
Propulsion 3 x diesel generators, 2 motors, 5 000 shp

 

   The Impeccable is a sole ship in its class. It is the newest US Navy's ocean surveillance ship, which was designed to gather acoustic data, to detect and track submarines. Originally five ships of this class were planned, however remaining four ships were never built.

   Hull of this ship is catamaran-type, based on Victorious class. It is larger and faster than its predecessors. Twin-hull design has a greater stability at low speeds under adverse weather conditions. It prevents vessel from rolling in heavy seas and gives additional deck space. The Impeccable is on of the quietest surface vessels in the US Navy, outside the submarines.

   Vessel is built to tow two underwater listening devices. It has both active and passive capabilities. It collects, processes and transmits anti-submarine warfare data via satellite to shore stations. In addition to acoustic equipment, the Impeccable carries extensive suite of navigation, communications, command and control equipment.

   Crew onboard the ship consists of 25 civilian mariners and 20 navy personnel. Vessel carries no armament.

   The Impeccable class ship is powered by a diesel-electric propulsion system, that generates 5 000 shp. It is also fitted with omni-thruster hydrojets, developing 1 800 hp. The Impeccable has a maximum speed of 13 knots, which reduces to 3 knots, when ship tows a sonar. Patrols are usually 60 - 90 days in duration.

 

Name Laid down Launched Commissioned Status
USNS Impeccable (T-AGOS-23) 1992 1998 2001

active, in service

Integrity (T-AGOS-24) - - -

ordered in 1991, but never completed

(T-AGOS-25) - - -

planned, but cancelled

(T-AGOS-26) - - -

planned, but cancelled

(T-AGOS-27) - - -

planned, but cancelled

 

 

Video of the USNS Impeccable ocean surveillance ship

 
Impeccable class

Impeccable class

Impeccable class

Impeccable class

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